@mixin border-v($p: left, $size: 1px, $color: var(--el-border-color)) {
  position: relative;
  &::after {
    content: "";
    position: absolute;
    #{$p}: 0;
    top: 0;
    bottom: 0;
    width: 0;
    border-#{$p}: 1px solid $color;
    z-index: 3;
  }
}
@mixin border-h($p: left, $size: 1px, $color: var(--el-border-color)) {
  position: relative;
  &::after {
    content: "";
    position: absolute;
    #{$p}: 0;
    left: 0;
    right: 0;
    height: 0;
    border-#{$p}: 1px solid $color;
    z-index: 3;
  }
}
